English — Forum #723 (Page 261/642)

1. Case Study under HYSYS Dynamic Simulation - HCBBS Forum
2. Selection of laboratory pumps - HCBBS Forum
3. Do horizontal self-priming pumps require a parameter for effective net positive suction head? - HCBBS Forum
4. 【Weekly Topic】【Production Version 201605018】 - HCBBS Forum
5. Is it required for the manufacturing plant to have the necessary qualifications for manufacturing non-standard (non-classified) pressure vessels? - HCBBS Forum
6. 【Weekly Topic】【 HVAC Version 201605026】 - HCBBS Forum
7. Which equipment needs to undergo a hydrostatic test - HCBBS Forum
8. 【Daily Question】2016 05 18 Hydrogenation Section Multiple Choice When steam is introduced to one side of the heat exchanger, it is necessary to do the same to the other side. - HCBBS Forum
9. Questions about whether a building code requirement of less than 5% can lower the fire protection rating? ? ? Urgent! Urgent! Urgent! Urgent! ! ! - HCBBS Forum
10. Question about screw compressors - HCBBS Forum
11. What is the password for the SW6 user material database? ! - HCBBS Forum
12. thickener - HCBBS Forum
13. Is this the correct way to lift it? - HCBBS Forum
14. 【Daily Topic】【Electrical Edition 20160526】 - HCBBS Forum
15. Measurement by the dripping of water meters – Water can also be measured at low flow rates; what principle is used for this? - HCBBS Forum
16. 【Q&A Question 035】May 25, 2016 - HCBBS Forum
17. Large storage tank for storing biogas - HCBBS Forum
18. Atmospheric furnace temperature - HCBBS Forum
19. Service life of ceramic fillers - HCBBS Forum
20. Regression of liquid-liquid phase equilibrium data using ASPEN’s NRTL and UNIQUAC modules yields large discrepancies; a analytical approach is sought - HCBBS Forum
21. The component oil has a low octane number and high sulfur content; should it be adjusted with alkylated oil or aromatic oil? - HCBBS Forum
22. Seeking CAD drawings for methanol distillation process, process flow diagrams, and layout plans - HCBBS Forum
23. Chemical engineering design - HCBBS Forum
24. Looking for a schematic diagram of the alkylation process, with a brief description of the process. It would be best to have pictures of the equipment - HCBBS Forum
25. 【Daily Image No. 005】May 25, 2016: +2 wealth for participation, +3 additional wealth for correct answers - HCBBS Forum
26. Dimethyl ether unit converted to C4 aromatization - HCBBS Forum
27. Carbon dioxide recovery from the desorption gas of dry gas hydrogen production units - HCBBS Forum
28. During the HAZOP analysis, the shutdown of the plant is not always considered as a possible consequence; so what are the consequences of a shortage of instrument air? - HCBBS Forum
29. 【Daily Question】Advanced Processing 20160527 Multiple-choice question: When a centrifugal pump is operating normally, the value of its head and the height it can lift... - HCBBS Forum
30. The issue of unstable voltage at the terminals on the card - HCBBS Forum
31. Six sentences for safe and reflective thinking - HCBBS Forum
32. Pore gas velocity in a boiling furnace - HCBBS Forum
33. Is there iron with a carbon content greater than 6.69? - HCBBS Forum
34. Energy-saving technologies for reverse osmosis equipment to improve water yield and prevent and remove biofilms - HCBBS Forum
35. Senior, I would like to ask if the ISO9000 certificate is useful? - HCBBS Forum
36. 【Daily Topic】【Engineering Version 20160522】 - HCBBS Forum
37. Sulfur Daily Question, May 28------3 points for participation, 10 points for a correct answer - HCBBS Forum
38. Reformation pre-hydrogenation - HCBBS Forum
39. Does anyone have software for setting P+F thermal resistance/thermocouple safety barriers? - HCBBS Forum
40. Relationship between gas flow rate and pressure - HCBBS Forum
41. Question post - HCBBS Forum
42. Main cable of the junction box - HCBBS Forum
43. 【Weekly Topic】【Production Version 201605019】 - HCBBS Forum
44. Regarding the calibration of the weighbridge - HCBBS Forum
45. Internal machine seal and external machine seal - HCBBS Forum
46. When you gaze into the void, the void is also gazing at you - HCBBS Forum
47. What is the reason for the high volatility phenol level of 2500 mg/L in ammonia-vaporized wastewater? - HCBBS Forum
48. Refined naphthalene design - HCBBS Forum
49. Distillation tower design issues - HCBBS Forum
50. Should the sealing oil tank be pressurized when a high-speed pump is used as a backup? - HCBBS Forum
51. Factors to consider when adjusting the conveyor drum position - HCBBS Forum
52. Sinopec Lubricant Base Oil Agreement Standard – 2012 Edition - HCBBS Forum
53. Are ammeters and voltmeters subject to mandatory calibration or self-checking, and what is the calibration interval? - HCBBS Forum
54. What the safety barrier instructions mean - HCBBS Forum
55. 【Daily Topic】【Civil Engineering Version 20160527】 - HCBBS Forum
56. Question regarding sulfuric acid waste dechlorination and concentration equipment - HCBBS Forum
57. How is the market for electrical engineering workers? - HCBBS Forum
58. A brief analysis of food chain belt conveyors - HCBBS Forum
59. Seeking a catalysis training PPT for reference - HCBBS Forum
60. 【Picture of the Day】2016 05 24 What is the device at the top of the pipeline in this image? Does anyone know? - HCBBS Forum
61. Shutdown of methanol-to-hydrogen production, catalyst reduction and passivation steps, temperature changes during reduction and passivation, and precautions - HCBBS Forum
62. Continuous distillation in the maleic anhydride process - HCBBS Forum
63. ECS700 issues - HCBBS Forum
64. When replacing the pump shaft in a horizontal multi-stage centrifugal pump, what should be done if the steel impeller cannot be removed? - HCBBS Forum
65. Lightning protection and countermeasures - HCBBS Forum
66. Washing tower feed pump - HCBBS Forum
67. Safety Technology Exchange Edition: Daily Question (2016.5.25) - HCBBS Forum
68. Sulfur price - HCBBS Forum
69. 【Daily Topic】【Engineering Version 20160525】 - HCBBS Forum
70. One Question per Day on Synthetic Ammonia (Series 100) - HCBBS Forum
71. Occupational Health Daily Question 5.27: Participate for a prize; 3 answers correct and you’ll get another prize - HCBBS Forum
72. Operating conditions and standard conditions in gas temperature and pressure compensation? - HCBBS Forum
73. When you gaze into the void, the void is also gazing at you - HCBBS Forum
74. Selection of cable trays for Class A explosion-proof workshops - HCBBS Forum
75. Distillation column operation - HCBBS Forum
76. Who has application examples of screw pumps in delayed coking? - HCBBS Forum
77. 【Purification Daily Question】May 25, 2016 - HCBBS Forum
78. Are LF4 and 5083 the same material? - HCBBS Forum
79. High outlet temperature of the tertiary condenser cooler - HCBBS Forum
80. Reasons for the loss of tons in the gas separation unit - HCBBS Forum
81. 【Q&A Question 028】May 18, 2016 - HCBBS Forum
82. Seeking advice on the selection of sulfur recovery hydroscopers - HCBBS Forum
83. Underground installation of high-temperature and high-pressure hot water pipelines - HCBBS Forum
84. Sharing a autoclave drawing that I drew myself - HCBBS Forum
85. Iron-containing waste residues, acid production waste residues are required - HCBBS Forum
86. Causes of various faults in plate exchangers and solutions - HCBBS Forum
87. Data on the saturated water content in liquid 1,3-butadiene at different temperatures - HCBBS Forum
88. The discs of tube chain conveyors wear out quickly - HCBBS Forum
89. Why are small holes made in the feed pipe of the reflux tank - HCBBS Forum
90. I would like to ask about the algorithms for calculating moment of inertia and inertial torque - HCBBS Forum
91. How to disassemble an eddy current fan - HCBBS Forum
92. I wonder what type of seal is best for screw conveyors? - HCBBS Forum
93. What is the typical flow rate for a pipe with a diameter of 50? Water, galvanized pipe, cooling water, temperature 30℃ - HCBBS Forum
94. The second-phase project has started, and it’s time to select equipment. Could you recommend some manufacturers? - HCBBS Forum
95. Two ministries release major project packages to accelerate the development of coal chemical industry bases - HCBBS Forum
96. FMEE has no promotional or practical value - HCBBS Forum
97. Heat pump distillation - HCBBS Forum
98. 【Daily Judgment NO.18】May 26, 2016 - HCBBS Forum
99. Solutions for dust and oil contamination in coking gas - HCBBS Forum
100. Gentle experts, why is it so difficult to work with explosion-proof electrical equipment these days? - HCBBS Forum